SolarEdge

Connecting the Strings to the DC Safety Unit
3. Connect the DC wires according to the DC+ and DC- labels:
• For DC terminals without fuses: Use a standard flat-blade screwdriver to connect
the wires to the spring-clamp terminals.
o The screwdriver blade should fit freely in the terminal opening. Too
large a blade can crack the plastic housing.
o
o
Insert the screwdriver and press the release mechanism and open the
clamp.
Insert the conductor into the round opening and remove the
screwdriver – the wire is automatically clamped.
Figure 41: Spring-clamp terminals
• For DC terminals with fuses:
o Insert the wires into the side openings.
o
Fasten the screws at the top of the fuses.
4. Verify that there are no unconnected wires.
Figure 42: DC connection with fuses
5. Close the DC Safety Unit cover. Attach the cover and secure it by tightening the four
screws with a torque of 1.2 N*m / 0.9 ft.*lb.
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SolarEdge-Installation Guide MAN-01-00057-3.1